noderedrevpinodes-server ERROR Connection to server wss://localhost:8000

• I updated Node-Red to the latest version 3.0.2.
  Installed "node-red-contrib-revpi-nodes 1.0.9"

Lost connection to WS Server!
Connecting to WS Server wss://localhost:8000
ERROR Connection to server wss://localhost:8000 error: write EPROTO 3069520384:error:1408F10B:SSL routines:ssl3_get_record:wrong version number:../deps/openssl/openssl/ssl/record/ssl3_record.c:332:

Lost connection to WS Server!

Hi Federico,

The server versions only run with the corresponding client versions:
1.0.9 with 1.0.4
1.1.0 with 1.0.5

You can use the following steps to get it to work:

1. Download the latest version of the server and update it. This is version 1.0.5-1

Code: Select all

wget https://github.com/erminas/noderedrevpinodes-server/releases/download/1.0.5-1/noderedrevpinodes-server_1.0.5-1_all.deb &&
sudo apt install ./noderedrevpinodes-server_1.0.5-1_all.deb

2. Update npm:

Code: Select all

sudo npm install -g npm@latest
  

3. Download the latest version of the client and update it. This is version 1.1.0

Code: Select all

wget https://github.com/erminas/node-red-contrib-revpi-nodes/archive/refs/tags/1.1.0.zip &&
unzip 1.1.0.zip &&
cd /home/pi/.node-red/ &&
sudo npm i [Path to the unzipped directory, probably: /home/pi ]/node-red-contrib-revpi-nodes-1.1.0/

3. Restart NodeRed:

Code: Select all

sudo systemctl restart nodered
  

Regards,
Dennis

Feb 03 15:19:19 RevPi90254 Node-RED[5811]: 2023-02-03 14:19:19 Connecting to WS Server wss://localhost:8000
Feb 03 15:19:19 RevPi90254 Node-RED[5811]: 2023-02-03 14:19:19 Connection to WS Server wss://localhost:8000 established!
Feb 03 15:19:19 RevPi90254 Node-RED[5811]: 2023-02-03 14:19:19 error Unsupported server version!

Hi Federico,
check the versions again like this:

You can get the server version with this command. The Server should be in version 1.0.5-1 not 1.0.5.

Code: Select all

apt-cache policy noderedrevpinodes-server

For the client, go to the palette manager in the NodeRed frontend. The nodes with version 1.1.0 should be there:
Screenshot_Node-RED.png

If one of the versions is different, despite the updates, remove this part and reinstall it.

The easiest way to remove the nodes is to use the palette manager in Node Red. The Remove button is only displayed when all RevPi nodes have been removed from the flows. Including the config nodes. You can find the config node by searching (ctrl-f) with the keyword "revpi-server".

Regards,
Dennis

Hello Cloud,

this seems to be a different problem. Could you post the output from the server log?

cat /var/log/revpi-server.log

Thanks,
Jonas

Hello Cloud,

try restarting the server:
sudo systemctl restart noderedrevpinodes-server.service

If the problem still occurs, please post the output of:
sudo systemctl status noderedrevpinodes-server.service
and
sudo journalctl -fu noderedrevpinodes-server

Regards,
Jonas